Goodwill employee Maria Rivera found the painting in a donation bin in November, but she set the item aside on a hunch that it might be of value. “I didn’t know how much at the time, but I knew we had some money here,” Rivera told a local NBC affiliate last week.

In fact, Rivera said she based her opinion of the painting on a memory of having recently seen a similar work at a museum.

The painting, which depicts an elderly woman drinking a cup of tea, was then taken to an appraiser, who said it's worth between $12,000 and $18,000.

Of course, Goodwill officials say they won’t be surprised if someone, or even multiple people, come forward claiming to be the accidental donor of the Torriglia painting. However, because there was no proof of ownership left with the painting at the time, Goodwill officials say it’s unlikely an individual could take ownership.

Goodwill adds that it will use the proceeds for its job-training program.

The unusual discovery is actually part of a larger trend of people making accidental art donations to Goodwill in recent months.